Which is the best relationship between the two ideas ?

The excerpt above is from page 21 of harry potter and the sorcerers stone by j.k rowling. which passage represents a

Which word is the comparative form? hyper best less most fruitful

Which of the following is a complex sentence? a. after henry submitted his essay, he realized that he hadn't proofread the last page. b. identity theft is a growing problem, especially among seniors. c. we didn't have enough potatoes for dinner, so we served rice instead. d. jim tried to watch a video on a device connected to a crowded wireless network; as a result, the video stuttered and froze.